Malicious PDF — malware analysis report

Static analysis result for SHA-256 34696626f2664808…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 17:18:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 3c6d56ffaef12519ca77e868543677af SHA-1: 8fa7ebe981d9ca91fa24f936ea8818ccdd229a3c SHA-256: 34696626f26648083915eaa1f82bd75bae1fb7dc992210592443440f0a8becff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to what appears to be a malicious redirector, disguised as a 'free generator / game hack' for Roblox. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting potentially harmful websites. The presence of embedded URLs and the lure of free in-game currency are indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-hack-roblox-for-free-robux-2021-game-hack In PDF document text
    • http://opac.stieimalang.ac.id/repository/hacks-for-mac-roblox_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-money-codes-on-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/counter-blox-roblox-offensive-cheats_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/nonce-diomand-free-roblox-haxz_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-get-free-robux-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-card-number-free_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-download-pc_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-skywars-infinite-coins-hack_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-to-get-50-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000327c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327C 21932 bytes
SHA-256: 25e0c2e919db95c5f5892308326088a1e6014c682f4993c5d9c913c8de457bb5
font_01_sfnt_off0000629d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629D 19528 bytes
SHA-256: 0ea56fc9ec4ddac6c3d216bd78e37efa370462606f735cb41edc8d86764203e9

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